From 268f591379fd90d52eac329fabbaf7181e6305cf Mon Sep 17 00:00:00 2001
From: Jonny Lai <jonny.lai@commandp.com>
Date: Mon, 24 Oct 2016 19:20:48 +0800
Subject: [PATCH] convert the memory unit for mapping zabbix-server

---
 bin/memory-check.sh | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/bin/memory-check.sh b/bin/memory-check.sh
index ef02031..bb4e83e 100644
--- a/bin/memory-check.sh
+++ b/bin/memory-check.sh
@@ -5,12 +5,18 @@
 #  Filename: memory-check.sh
 #  Modified: 2016-10-24 13:05
 #  Description: Monitoring memory usage of specific process.
+#
+#   The RSS (resident set size) is mean memory used in KB, not B,
+#   so we need to `* 1024` for mapping zabbix-server.
+#
 #  Reference: 
 #
 #   1. Total memory used by Python process? | Stack Overflow
 #    - http://stackoverflow.com/a/40173829/686105
+#   2. linux - ps aux output meaning | Super User
+#    - http://superuser.com/a/117921/205255
 #
 # =========================================================== 
 
 PROCESS_NAME="$1"
-ps aux | grep $PROCESS_NAME | awk '{ sum=sum+$6 }; END { print sum }'
+ps aux | grep $PROCESS_NAME | awk '{ sum=sum+$6 }; END { print sum*1024 }'